Spectra-physics Scanning Systems, Inc.

Datalogic Adc, Inc.

Datalogic Usa, Inc.

Jon Pc Williams

Bryan L Olmstead

Alexander Malcolm McQueen

James W Ring

Alan Shearin

Jorge Louis Acosta

Michael J Ahten

Paul R Huss

Bruce E Paris

Brad R Reddersen

Thomas E Tamburrini

Jeffrey J Hoskinson

Nicolas N Tabet

Randy L Person

Rockie D Moch

David J Newman

Phillip W Shepard

David P Ingles

Ryan B Thompson

A method and apparatus for reading bar codes or other images while reducing or eliminating the need for self-generated illumination. An image reader is preferably embodied as a handheld unit and comprises an efficient optical collection system including an aperture with a high aspect ratio and/or a multi-focal lens or lenses. An optically transmissive spacer affixed to the front of the handheld unit allows ambient light to be collected at close range, and a diffuser may be used to reflect ambient light from the handheld unit to provide additional illumination at close range. A masked CCD detector with rectangular pixels receives collected light and is coupled to an adaptive exposure circuit for preventing saturation of the CCD detector at high illumination levels. A correlated double sampling circuit coupled to the adaptive exposure circuit rejects common mode noise and allows operation in lower light levels. The correlated double sampling circuit is connected to a signal processor which uses a derivative based technique for detecting edges of the image. A decoder uses the edge detection information to decode encoded information from the image.

Multi-focus optical reader with masked or apodized lens

Method and apparatus for reading images without need for self-generated

Image reader with multi-focus lens

An interface selection and configuration system for a computer peripheral in which configuration for the peripheral and/or the host interface is at least in part accomplished by the interface connector cable. In a preferred embodiment, the computer peripheral is equipped with one or more hardware interfaces. The interface connector cable has a first end connector for attaching to the computer peripheral. The first end connector of the interface connector cable is typically a multiple pin connector constructed and arranged to be properly physically and electrically connectable only to a specific computer peripheral or class of computer peripherals, the first end connector including at least one electrical connection between two pins for completing a circuit within the computer peripheral thereby enabling the computer peripheral. Where the peripheral is a data reading device such as a laser scanner or RFID reader, alternate or additional configuration may be obtained, with data reading device, from the label on the interconnect cable. The label, which may for example be a bar code or RFID tag, contains information or instructions by which the data reading device (and/or the host) is configured.

Multiple-interface selection for computer peripherals

Growing community of inventors

Eugene, OR, United States of America

Jon Pc Williams